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c++ Programming Glossary: comphttp://stackoverflow.com/questions/1736267/c-cout-printing-slowly that looks like it beats the pants off of cout on my comp class rcout public char buff 4096 unsigned int size unsigned.. needs small number of instruction to do a same job comparing to cout . Here is a summary of my experimentation The number.. dec 0x hex addr rtnname srccode dec lineno endl On a VC compiler with optimizations it generates around 188 bytes code. But..
http://stackoverflow.com/questions/2258332/distributed-computing-in-c i would like to use are written in it. c distributed computing cluster computing share improve this question MPI is.. to use are written in it. c distributed computing cluster computing share improve this question MPI is really cool Info..
Is there a sorted_vector class, which supports insert() etc.? http://stackoverflow.com/questions/2710221/is-there-a-sorted-vector-class-which-supports-insert-etc InputIterator first InputIterator last const Compare comp Compare const allocator_type a allocator_type Effects Constructs.. Effects Constructs an empty set using the specified comparison object and allocator and inserts elements from the range.. in N if the range first last is already sorted using comp and otherwise N log N where N is last first. share improve..
C/C++: switch for non-integers http://stackoverflow.com/questions/4165131/c-c-switch-for-non-integers hacks would require a lot of coding making everything more complex and harder to maintain. What's the best way to do this fast.. magic it's possible to get an unrolled binary search at compiletime with pretty syntax but the MATCHES case have to be sorted.. std pair const KeyType FunPtrType sws Comp comp typedef std pair const KeyType FunPtrType KVT auto cmp comp..
Usage of this next_combination code http://stackoverflow.com/questions/4436353/usage-of-this-next-combination-code RandIt first RandIt mid RandIt last Compare comp std sort mid last std tr1 bind comp std tr1 placeholders _2.. RandIt last Compare comp std sort mid last std tr1 bind comp std tr1 placeholders _2 std tr1 placeholders _1 return std.. tr1 placeholders _1 return std next_permutation first last comp I tried to call it like this bool mycomp int c1 int c2 return..
Performance of qsort vs std::sort? http://stackoverflow.com/questions/4708105/performance-of-qsort-vs-stdsort 100000 struct rnd int operator return rand LARGE_SIZE int comp const void a const void b return int a int b int main int ary.. using function pointer std qsort ary LARGE_SIZE sizeof int comp std cout C quick sort time elapsed static_cast double clock.. invalidates the test. In addition make sure that you compiled with all optimizations. Finally I copied and pasted your..
Are IEEE floats valid key types for std::map and std::set? http://stackoverflow.com/questions/4816156/are-ieee-floats-valid-key-types-for-stdmap-and-stdset for std map and std set Background The requirement for a comparator on the key type of an associative container for example.. weak order on the elements of the key type. For a given comparator comp x y we define equiv x y comp x y comp y x . The requirements.. on the elements of the key type. For a given comparator comp x y we define equiv x y comp x y comp y x . The requirements..
How to (computed) goto and longjmp in C++? http://stackoverflow.com/questions/7588079/how-to-computed-goto-and-longjmp-in-c to computed goto and longjmp in C I don't usually code C but a strange.. and longjmp in C I don't usually code C but a strange comp sci friend of mine got sick of looking at my wonderful FORTRAN.. betting money here. Exact terms being that it needs to be compilable in a modern C compiler. Maybe he hates a good conio.h..
http://stackoverflow.com/questions/1085490/how-do-c-c-compilers-work and grammar theory textbook on unsuspecting 3rd year Comp Sci students. I was left with no practical knowledge and even..
Default template arguments for function templates http://stackoverflow.com/questions/2447458/default-template-arguments-for-function-templates create a sort function template typename Iterator typename Comp std less Iterator void sort Iterator beg Iterator end Comp c.. Comp std less Iterator void sort Iterator beg Iterator end Comp c Comp ... C 0x introduces them to C . See this defect report.. less Iterator void sort Iterator beg Iterator end Comp c Comp ... C 0x introduces them to C . See this defect report by Bjarne..
C/C++: switch for non-integers http://stackoverflow.com/questions/4165131/c-c-switch-for-non-integers template typename KeyType typename FunPtrType typename Comp void Switch const KeyType value std initializer_list std pair.. std initializer_list std pair const KeyType FunPtrType sws Comp comp typedef std pair const KeyType FunPtrType KVT auto cmp..
http://stackoverflow.com/questions/5854581/polymorphism-in-c To understand polymorphism as the term is used in Computing Science it helps to start from a simple test for and definition.. x 2 run time polymorphic dispatch Other related mechanisms Compiler provided polymorphism for builtin types Standard conversions.. at run time the correct code is selected virtual dispatch Compile time means the choice of type specific code is made during..
C++ STL vector vs array in the real world http://stackoverflow.com/questions/6462985/c-stl-vector-vs-array-in-the-real-world a Java book but we didn't cover them at all in my Intro to Comp. Sci. class nor my Data Structures class at college. I've also..
Generic Hash function for all STL-containers http://stackoverflow.com/questions/6899392/generic-hash-function-for-all-stl-containers you're good to go namespace std template typename T class Comp class Alloc struct hash std set T Comp Alloc inline std size_t.. typename T class Comp class Alloc struct hash std set T Comp Alloc inline std size_t operator const std set T Comp Alloc.. T Comp Alloc inline std size_t operator const std set T Comp Alloc s const return my_range_hash s.begin s.end ... ditto..
Determine if a type is an STL container at compile time http://stackoverflow.com/questions/9407367/determine-if-a-type-is-an-stl-container-at-compile-time for std vector T Alloc deque T Alloc set T Alloc Comp etc... c templates stl template meta programming share improve..
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